public class SpeakerImpl implements Speaker{
    @Override
    public void speak() {
        System.out.println("Speak: 1、The java.lang and java.lang.reflect packages provide classes for java reflection.");
        System.out.println("2、Java Reflection is a process of examining or modifying the run time behavior of a class at run time.");
        System.out.println("3、The java.lang.Class class provides many methods that can be used to get metadata, examine and change the run time behavior of a class");
    }
}
